/*
 * Copyright 2017 HugeGraph Authors
 *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
 * licenses this file to You under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */

package com.baidu.hugegraph.api.filter;

import javax.inject.Singleton;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerResponseContext;
import javax.ws.rs.container.ContainerResponseFilter;
import javax.ws.rs.core.Context;
import javax.ws.rs.ext.Provider;

import com.baidu.hugegraph.define.WorkLoad;

@Provider
@Singleton
public class LoadReleaseFilter implements ContainerResponseFilter {

    @Context
    private javax.inject.Provider<WorkLoad> loadProvider;

    @Override
    public void filter(ContainerRequestContext requestContext,
                       ContainerResponseContext responseContext) {
        if (LoadDetectFilter.isWhiteAPI(requestContext)) {
            return;
        }

        WorkLoad load = this.loadProvider.get();
        load.decrementAndGet();
    }
}
